What does the gauge of a metal stud determine?

The gauge of a metal stud primarily determines its thickness. In the context of construction, particularly for framing, the gauge is a numerical representation that correlates with the thickness of the steel used in the stud. A lower gauge number indicates a thicker stud, which generally provides greater strength and durability. The thickness directly affects the stud's ability to support loads, resist warping, and provide proper insulation when used in walls and other structures. Therefore, understanding the gauge is crucial for selecting the appropriate metal studs for specific building applications.